:root{
  --navy:#09223E; --navy-800:#122543; --navy-700:#203850; --navy-600:#2E4A66;
  --teal:#1ABBCF; --teal-600:#128291; --teal-500:#17A3B6; --teal-100:#BBEAF0; --teal-50:#DBF7FB;
  --ink:#212121; --ink-2:#5C626B; --ink-3:#8B9098; --rule:#C2C2C2; --wash:#F3F3F3; --paper:#FFFFFF;
  --sans:"Pretendard Variable","Pretendard","Noto Sans KR","Noto Sans",Arial,sans-serif;
  --mono:"IBM Plex Mono","SFMono-Regular",Consolas,monospace;
  --max:1240px; --pad:clamp(22px,4vw,56px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--paper)}
body{margin:0;color:var(--ink);background:var(--paper);font-family:var(--sans);line-height:1.58;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit}
::selection{background:var(--teal-100);color:var(--navy)}
.container{width:min(var(--max),calc(100% - 2*var(--pad)));margin-inline:auto}
.section{padding:clamp(84px,9vw,140px) 0}
.section-rule{border-top:1px solid #E5E8EB}
.skip-link{position:fixed;top:10px;left:10px;z-index:9999;background:var(--navy);color:#fff;padding:10px 14px;transform:translateY(-160%)}
.skip-link:focus{transform:none}
.mono{font-family:var(--mono)}
.eyebrow{margin:0 0 18px;font-family:var(--mono);font-size:11px;line-height:1.2;letter-spacing:.18em;color:var(--teal-600);font-weight:600}
h1,h2,h3,p{margin-top:0}
h1,h2,h3{color:var(--navy);letter-spacing:-.03em}
h1{font-size:clamp(42px,5.4vw,78px);line-height:1.03;max-width:880px;margin-bottom:30px;font-weight:650}
h2{font-size:clamp(34px,4vw,58px);line-height:1.08;margin-bottom:24px;font-weight:640}
h3{font-size:20px;line-height:1.25;font-weight:650}
p{font-size:16px}
.lead{font-size:clamp(18px,1.7vw,23px);line-height:1.62;color:var(--ink-2)}
.button{display:inline-flex;align-items:center;justify-content:space-between;gap:24px;min-height:50px;padding:13px 18px;background:var(--teal);color:var(--navy);border:1px solid var(--teal);font-size:14px;font-weight:700;letter-spacing:.01em;transition:transform .18s ease,background .18s ease,border-color .18s ease}
.button:hover{transform:translateY(-2px);background:#29c6d9;border-color:#29c6d9}
.button:focus-visible,.text-link:focus-visible,.desktop-nav a:focus-visible,.lang-toggle:focus-visible,.menu-toggle:focus-visible,a:focus-visible{outline:3px solid var(--teal);outline-offset:4px}
.button-small{min-height:40px;padding:9px 13px;gap:12px}
.text-link{display:inline-flex;gap:14px;align-items:center;color:var(--navy);font-weight:650;border-bottom:1px solid var(--rule);padding-bottom:6px}
.text-link:hover{border-color:var(--teal)}

.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);border-bottom:1px solid #E7EAED;backdrop-filter:blur(14px)}
.header-inner{height:76px;display:flex;align-items:center;justify-content:space-between;gap:30px}
.brand img{width:154px;height:auto}
.desktop-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.desktop-nav a{font-size:13px;color:var(--ink-2);font-weight:600}
.desktop-nav a:hover{color:var(--navy)}
.header-actions{display:flex;align-items:center;gap:12px}
.lang-toggle{width:40px;height:40px;border:1px solid #D9DDE1;background:#fff;color:var(--navy);font-family:var(--mono);font-size:11px;font-weight:700;cursor:pointer}
.menu-toggle{display:none;width:42px;height:40px;background:#fff;border:1px solid #D9DDE1;position:relative;cursor:pointer}
.menu-toggle span{position:absolute;left:11px;right:11px;height:1.5px;background:var(--navy)}
.menu-toggle span:first-child{top:15px}.menu-toggle span:last-child{top:23px}
.mobile-nav{display:none;background:#fff;border-top:1px solid #E7EAED;padding:18px var(--pad) 24px}
.mobile-nav a{display:block;padding:13px 0;border-bottom:1px solid #EEF0F2;color:var(--navy);font-weight:600}

.hero{padding-top:clamp(72px,8vw,118px);min-height:calc(100vh - 76px);display:flex;align-items:center}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(420px,.95fr);gap:clamp(40px,6vw,90px);align-items:center}
.hero-deck{max-width:760px;font-size:clamp(19px,1.8vw,25px);color:var(--ink-2);line-height:1.62;margin-bottom:34px}
.hero-actions{display:flex;align-items:center;gap:28px;flex-wrap:wrap}
.tagline{margin:52px 0 0;font-family:var(--mono);font-size:12px;color:var(--ink-3);letter-spacing:.08em}
.hero-system{border:1px solid #DBDFE3;background:#fff;padding:20px;box-shadow:0 22px 70px rgba(9,34,62,.07)}
.system-caption{display:flex;justify-content:space-between;gap:20px;padding-bottom:15px;border-bottom:1px solid #E8EBEE;color:var(--ink-3);font-size:11px}
.system-caption .mono{color:var(--navy);font-weight:700}
.system-stage{position:relative;aspect-ratio:1.18/1;min-height:430px}
.system-loop svg{width:100%;height:100%;position:absolute;inset:0}
.stage-label{position:absolute;display:flex;align-items:center;gap:8px;font-family:var(--mono);font-size:11px;color:var(--navy);letter-spacing:.05em}
.stage-label strong{display:grid;place-items:center;width:30px;height:30px;border:1px solid var(--navy);font-size:9px}
.label-design{top:11%;left:3%}.label-build{top:14%;right:1%}.label-test{bottom:8%;right:4%}.label-learn{bottom:10%;left:1%}

.two-col{display:grid;grid-template-columns:minmax(280px,.8fr) minmax(0,1.2fr);gap:clamp(50px,8vw,130px)}
.section-intro h2{max-width:650px}.section-intro.wide{max-width:900px}
.principle-grid{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--navy);margin-top:44px}
.principle-grid article{padding:28px 26px 28px 0;border-bottom:1px solid #DEE2E5;min-height:210px}
.principle-grid article:nth-child(odd){border-right:1px solid #DEE2E5;padding-right:28px}.principle-grid article:nth-child(even){padding-left:28px}
.principle-grid .index,.collab-grid article>span{font-family:var(--mono);font-size:10px;color:var(--teal-600);letter-spacing:.12em}
.principle-grid h3{margin:24px 0 10px}.principle-grid p{color:var(--ink-2);font-size:14px;margin-bottom:0}

.navy-section{background:var(--navy);color:#fff}
.navy-section h2,.navy-section h3{color:#fff}.navy-section .eyebrow{color:var(--teal)}
.propel-head{display:grid;grid-template-columns:.85fr 1.15fr;gap:70px;align-items:end}.propel-head .eyebrow{grid-column:1/-1;margin-bottom:-30px}.propel-head p{color:#C7D2DC;font-size:18px;margin:0}
.workflow{display:grid;grid-template-columns:1fr auto 1fr auto 1fr auto 1fr;align-items:stretch;margin-top:72px}
.workflow-card{border-top:1px solid var(--navy-600);border-bottom:1px solid var(--navy-600);padding:28px 18px 24px;min-height:310px;position:relative}.workflow-card:first-child{border-left:1px solid var(--navy-600)}.workflow-card:nth-of-type(4){border-right:1px solid var(--navy-600)}
.workflow-no{font-family:var(--mono);font-size:10px;color:var(--teal);letter-spacing:.12em;margin-bottom:34px}.workflow-card p{color:#AEBECD;font-size:14px}.workflow-mark{position:absolute;bottom:24px;right:20px;font-family:var(--mono);font-size:16px;color:var(--teal);letter-spacing:.2em}.workflow-mark.dna-mark{font-size:22px}.workflow-mark.signal-mark{letter-spacing:-.15em;font-size:26px}
.connector{display:grid;place-items:center;color:var(--teal);padding:0 8px}
.qualifier{margin:30px 0 0 auto;max-width:720px;color:#95A8BA;font-size:12px;border-left:2px solid var(--teal);padding-left:16px}

.data-layout{align-items:center}.data-card{border:1px solid #D7DCE0;padding:22px 24px;background:#fff;box-shadow:0 18px 50px rgba(9,34,62,.05)}
.data-card-top{display:flex;justify-content:space-between;gap:20px;padding-bottom:16px;border-bottom:1px solid var(--navy);font-family:var(--mono);font-size:10px;color:var(--navy);letter-spacing:.12em}.status-dot{color:var(--teal-600);font-weight:700}
.data-row{display:grid;grid-template-columns:1fr 1.3fr;gap:20px;padding:17px 0;border-bottom:1px solid #E7EAED}.data-row span{color:var(--ink-3);font-size:12px}.data-row strong{color:var(--navy);font-size:13px}.data-signal{padding-top:24px}.data-signal svg{width:100%;height:auto;display:block}

.tech-grid{display:grid;grid-template-columns:repeat(4,1fr);margin-top:58px;border-top:1px solid var(--navy);border-bottom:1px solid #DEE2E5}
.tech-grid article{padding:28px 24px 34px;border-right:1px solid #DEE2E5;min-height:280px}.tech-grid article:first-child{padding-left:0}.tech-grid article:last-child{border-right:0}
.tech-role{font-family:var(--mono);font-size:10px;color:var(--teal-600);letter-spacing:.13em}.tech-grid h3{margin-top:36px;min-height:52px}.tech-grid p{font-size:14px;color:var(--ink-2);margin-bottom:0}

.cfps{background:#F8FAFB}.cfps-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(50px,8vw,120px);align-items:start}.ruo{font-family:var(--mono);font-size:10px;color:var(--ink-3);letter-spacing:.03em;margin-top:32px}
.product-stack{display:grid;gap:14px}.product-card{background:#fff;border:1px solid #D9DEE2;border-top:3px solid var(--navy);padding:26px;display:grid;grid-template-columns:1.3fr .7fr;gap:25px;align-items:end}.product-card .cat{font-family:var(--mono);font-size:10px;color:var(--teal-600);letter-spacing:.1em}.product-card h3{font-size:18px;margin:14px 0 8px}.product-card p{font-size:24px;color:var(--navy);font-weight:650;margin:0}.basis{border-left:1px solid #DEE2E5;padding-left:20px}.basis span{display:block;font-family:var(--mono);font-size:9px;color:var(--ink-3);letter-spacing:.12em;margin-bottom:8px}.basis strong{font-size:13px;color:var(--navy)}
.product-actions{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-top:14px}.product-actions p{font-size:12px;color:var(--ink-3);margin:0;max-width:300px}

.collab-grid{display:grid;grid-template-columns:repeat(3,1fr);margin-top:54px;border-top:1px solid var(--navy);border-bottom:1px solid #DEE2E5}.collab-grid article{padding:30px 34px;min-height:260px;border-right:1px solid #DEE2E5}.collab-grid article:first-child{padding-left:0}.collab-grid article:last-child{border-right:0}.collab-grid h3{margin:38px 0 16px}.collab-grid p{font-size:14px;color:var(--ink-2)}.center-action{text-align:center;margin-top:42px}

.about-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(50px,8vw,130px)}.about-rule{display:flex;flex-wrap:wrap;gap:10px;margin-top:42px}.about-rule span{font-family:var(--mono);font-size:10px;letter-spacing:.1em;color:var(--navy);border:1px solid #D8DDE1;padding:8px 10px}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(50px,9vw,140px);align-items:start}.contact h2{max-width:620px}.contact p{color:#C7D2DC;font-size:18px;max-width:560px}.button-on-dark{margin-top:22px}.contact-details{font-style:normal;margin:0;border-top:1px solid var(--navy-600)}.contact-details div{display:grid;grid-template-columns:160px 1fr;gap:24px;padding:20px 0;border-bottom:1px solid var(--navy-600)}.contact-details span{font-family:var(--mono);font-size:9px;letter-spacing:.12em;color:#8095A9}.contact-details strong,.contact-details a{font-size:13px;color:#fff;font-weight:500;line-height:1.7}.contact-details a:hover{color:var(--teal)}

.site-footer{padding:34px 0 40px;border-top:1px solid #E6E9EC;background:#fff}.footer-inner{display:flex;justify-content:space-between;gap:40px;align-items:flex-end}.footer-inner img{width:126px;margin-bottom:14px}.footer-inner p,.footer-meta{font-family:var(--mono);font-size:9px;color:var(--ink-3);letter-spacing:.06em;margin:0}.footer-meta{display:flex;gap:22px;flex-wrap:wrap;justify-content:flex-end}

.reveal{opacity:0;transform:translateY(12px);transition:opacity .55s ease,transform .55s ease}.reveal.is-visible{opacity:1;transform:none}

@media(max-width:1100px){
  .desktop-nav{display:none}.menu-toggle{display:block}.mobile-nav[hidden]{display:none}.mobile-nav:not([hidden]){display:block}
  .hero-grid{grid-template-columns:1fr}.hero-system{max-width:680px;width:100%}.hero{min-height:auto}
  .tech-grid{grid-template-columns:1fr 1fr}.tech-grid article:nth-child(2){border-right:0}.tech-grid article:nth-child(3){padding-left:0}.tech-grid article{border-bottom:1px solid #DEE2E5}.tech-grid article:nth-last-child(-n+2){border-bottom:0}
  .workflow{grid-template-columns:1fr 1fr;gap:0}.connector{display:none}.workflow-card{border:1px solid var(--navy-600)!important;margin:-1px 0 0 -1px}
}
@media(max-width:760px){
  :root{--pad:20px}.section{padding:74px 0}.header-inner{height:66px}.brand img{width:132px}.header-actions .button-small{display:none}
  h1{font-size:42px}.hero{padding-top:54px}.hero-system{padding:14px}.system-stage{min-height:320px}.stage-label{font-size:9px}.stage-label strong{width:26px;height:26px}
  .two-col,.propel-head,.cfps-grid,.about-grid,.contact-grid{grid-template-columns:1fr;gap:42px}.propel-head .eyebrow{grid-column:auto;margin-bottom:0}.propel-head{gap:18px}
  .principle-grid{grid-template-columns:1fr}.principle-grid article{border-right:0!important;padding:24px 0!important;min-height:0}
  .workflow{grid-template-columns:1fr}.workflow-card{min-height:220px}
  .tech-grid,.collab-grid{grid-template-columns:1fr}.tech-grid article,.collab-grid article{border-right:0!important;padding:26px 0!important;min-height:0}.tech-grid article{border-bottom:1px solid #DEE2E5!important}.tech-grid article:last-child{border-bottom:0!important}.collab-grid article{border-bottom:1px solid #DEE2E5}.collab-grid article:last-child{border-bottom:0}
  .product-card{grid-template-columns:1fr}.basis{border-left:0;border-top:1px solid #DEE2E5;padding:18px 0 0}.product-actions{align-items:flex-start;flex-direction:column}
  .contact-details div{grid-template-columns:1fr;gap:7px}.footer-inner{align-items:flex-start;flex-direction:column}.footer-meta{justify-content:flex-start}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}.button{transition:none}}

/* Controlled ProPEL system visual — uploaded master asset integration, 2026-08-12 */
.propel-visual{margin:64px 0 0;background:#fff;border:1px solid var(--navy-600);box-shadow:0 22px 70px rgba(0,0,0,.18);overflow:hidden}
.propel-visual-link{display:block;background:#fff;position:relative}
.propel-visual-link::after{content:"OPEN FULL RESOLUTION ↗";position:absolute;right:14px;bottom:14px;background:rgba(9,34,62,.92);color:#fff;font-family:var(--mono);font-size:9px;letter-spacing:.09em;padding:8px 10px;opacity:0;transform:translateY(4px);transition:opacity .18s ease,transform .18s ease}
.propel-visual-link:hover::after,.propel-visual-link:focus-visible::after{opacity:1;transform:none}
.propel-visual picture,.propel-visual img{display:block;width:100%;height:auto}
.propel-visual figcaption{display:grid;grid-template-columns:auto minmax(0,1fr);gap:28px;align-items:start;padding:18px 20px;background:#fff;border-top:1px solid #E4E8EB;color:var(--ink-2);font-size:12px;line-height:1.55}
.propel-visual figcaption .mono{color:var(--navy);font-size:10px;letter-spacing:.1em;font-weight:700;white-space:nowrap}
.workflow-summary{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--navy-600);border-bottom:1px solid var(--navy-600);margin-top:32px}
.workflow-summary article{padding:22px 20px 24px;border-right:1px solid var(--navy-600);min-height:132px}
.workflow-summary article:last-child{border-right:0}
.workflow-summary strong{display:block;color:#fff;font-size:13px;line-height:1.55;font-weight:520;margin-top:14px}
@media(max-width:900px){.workflow-summary{grid-template-columns:1fr 1fr}.workflow-summary article:nth-child(2){border-right:0}.workflow-summary article:nth-child(-n+2){border-bottom:1px solid var(--navy-600)}}
@media(max-width:760px){.propel-visual{margin-top:42px}.propel-visual figcaption{grid-template-columns:1fr;gap:8px}.propel-visual figcaption .mono{white-space:normal}.workflow-summary{grid-template-columns:1fr}.workflow-summary article{border-right:0!important;border-bottom:1px solid var(--navy-600)!important;min-height:0}.workflow-summary article:last-child{border-bottom:0!important}.propel-visual-link::after{display:none}}

/* GitHub Pages deployment build — 2026-08-13
   Latest cropped ProPEL DBTL master asset applied to the hero. */
.hero-system-image{padding:14px;overflow:hidden}
.hero-system-visual{display:block;margin-top:14px;background:#fff}
.hero-system-visual img{display:block;width:100%;height:auto}
@media(max-width:760px){.hero-system-image{padding:10px}.hero-system-visual{margin-top:10px}}


/* Product literature & technical documents — GitHub Pages deployment v1.2 */
.product-action-links{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.documents{background:#fff}
.document-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:52px}
.document-card{border:1px solid #D9DEE2;border-top:3px solid var(--navy);padding:28px 24px 26px;background:#fff;min-height:280px;display:flex;flex-direction:column}.document-card.featured-document{border-top-color:var(--teal-600);background:linear-gradient(180deg,rgba(26,187,207,.055),#fff 34%)}
.document-meta{display:flex;justify-content:space-between;align-items:center;gap:20px;font-family:var(--mono);font-size:9px;letter-spacing:.12em;color:var(--teal-600)}
.document-card h3{font-size:20px;margin:32px 0 14px;color:var(--navy)}
.document-card p{font-size:14px;color:var(--ink-2);margin:0 0 26px}
.document-download{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:auto;border-top:1px solid #E1E5E8;padding-top:18px;color:var(--navy);font-size:13px;font-weight:650}
.document-download:hover,.document-download:focus-visible{color:var(--teal-600)}
.document-note{margin:24px 0 0;color:var(--ink-3);font-size:12px;max-width:860px}
@media(max-width:1100px){.document-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:700px){.document-grid{grid-template-columns:1fr}.document-card{min-height:0}}
@media(max-width:760px){.product-action-links{align-items:flex-start;flex-direction:column;gap:14px}}

/* CFPS pricing — deployment v1.4 */
.cfps-pricing{margin-top:20px;border:1px solid #D9DEE2;border-top:3px solid var(--teal);background:var(--paper);min-width:0}
.cfps-pricing-heading{padding:22px 24px 18px}
.cfps-pricing-heading h3{margin:6px 0;color:var(--navy);font-size:20px}
.cfps-pricing-heading p{margin:0;font-size:12px;color:var(--ink-2)}
.cfps-price-table{border-collapse:collapse;width:100%;font-size:14px;color:var(--navy);font-variant-numeric:tabular-nums}
.cfps-price-table th,.cfps-price-table td{padding:14px 20px;border-top:1px solid #E5E8EB;text-align:right;white-space:nowrap}
.cfps-price-table th:first-child{text-align:left}
.cfps-price-table thead{background:var(--teal-50);font-size:12px}
.cfps-price-table tbody th{font-weight:500}
@media(max-width:480px){.cfps-pricing-heading{padding:20px 16px 16px}.cfps-price-table{font-size:12px}.cfps-price-table th,.cfps-price-table td{padding:12px 10px}.cfps-price-table thead{font-size:11px}}